公开(公告)号：US20250165154A1

公开(公告)日：2025-05-22

申请号：US18750234

申请日：2024-06-21

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seungho SONG ,  Taehyung KWON ,  Jeong-Eun KIM ,  Jeongseop SIM ,  Jungho YUN ,  Seunghwan HA

IPC: G06F3/06

Abstract: A storage device includes: a memory device including a plurality of memory blocks; and a memory controller configured to match the plurality of memory blocks to a plurality of super blocks in numbers of memory blocks. The memory controller further configured to select at least one memory block from each of super blocks that contain no bad blocks among the plurality of super blocks, release the matching of the at least one selected memory block from each of the super blocks that contain no bad blocks, and generate at least one additional super block based on the at least one selected memory block.

公开(公告)号：US20240201867A1

公开(公告)日：2024-06-20

申请号：US18525733

申请日：2023-11-30

Applicant: Samsung Electronics Co., Ltd.

Inventor： Seungho SONG ,  Jeong-Eun KIM ,  Jungho YUN ,  Taehyung KWON

IPC: G06F3/06 ,  G06F12/123

CPC classification number: G06F3/0619 ,  G06F3/0659 ,  G06F3/0679 ,  G06F12/123

Abstract: A storage device includes a memory device and a solid state drive used as a cache memory for the memory device. The solid state drive includes a storage unit including a plurality of nonvolatile memory cells, a memory controller configured to control the storage unit, and a data management unit configured to manage pieces of data, stored in the storage unit, in order of less recent access time. The data management unit may set at least one of the pieces of data, stored in the storage unit, as cold data based on a data access point in time, and may send an internal trim command for the cold data to the memory controller when a valid data ratio of the storage unit is higher than a reference valid ratio. The memory controller may perform an internal trim operation on the cold data.